131807017 has 2 divisors, whose sum is σ = 131807018. Its totient is φ = 131807016.

The previous prime is 131806991. The next prime is 131807021. The reversal of 131807017 is 710708131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67502656 + 64304361 = 8216^2 + 8019^2 .

It is a cyclic number.

It is not a de Polignac number, because 131807017 - 2¹¹ = 131804969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131807057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65903508 + 65903509.

It is an arithmetic number, because the mean of its divisors is an integer number (65903509).

Almost surely, 2^131807017 is an apocalyptic number.

It is an amenable number.

131807017 is a deficient number, since it is larger than the sum of its proper divisors (1).

131807017 is an equidigital number, since it uses as much as digits as its factorization.

131807017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 131807017 is about 11480.7237141219. The cubic root of 131807017 is about 508.9160844777.

The spelling of 131807017 in words is "one hundred thirty-one million, eight hundred seven thousand, seventeen".